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Alfa Laval S.p.A.

CB430

The Alfa Laval S.p.A. CB430 is a compact brazed plate heat exchanger in the Alfa Laval CB family. It transfers heat through corrugated metal plates that are permanently bonded into a gasket-free plate pack, allowing a small footprint compared with many conventional shell-and-tube arrangements. CB-family units are used in a broad range of liquid-to-liquid heating and cooling duties when the selected materials and operating envelope are suitable. Unlike a gasketed plate-and-frame exchanger, the bonded plate pack is not dismantled onboard for routine plate or gasket replacement; cleaning is normally performed by flushing or an approved cleaning-in-place method. Neighbouring model numbers and suffixes within the family distinguish physical or application configurations, but no capacity or plate count should be inferred solely from the model name. The designation CB430 identifies a specific CB brazed plate heat exchanger configuration in the supplied equipment list. Exact capacity, pressure and temperature limits, materials, connection details and internal configuration must be verified from the unit nameplate and manufacturer documentation; refer to the manufacturer documentation for the exact figure.

Alfa Laval S.p.A. CB430

Components & Design

Component data being added…

Technical Data

Model number CB430
Plate count (min) 20 plates
Plate count (max) 300 plates
Max flow rate 305.0 m3/h
Design pressure 33 bar
Application marine industrial cooling
Plate material Stainless steel (AISI 316)
Brazing material Copper

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Common failures & inspection points

Fouling or scaling inside the narrow plate channels reduces heat-transfer performance and increases pressure drop
Blocked strainers or restricted upstream piping reduce flow and produce abnormal outlet temperatures
Corrosion, erosion or fatigue damage to the bonded plate pack can cause internal cross-contamination between circuits
External leakage at connections caused by damaged joints, vibration or piping loads produces visible fluid loss
Freezing, thermal shock or operation outside the approved pressure and temperature envelope can damage the plate pack and lead to leakage

Service & Maintenance

Trend inlet and outlet temperatures and pressures to identify gradual loss of thermal performance. Inspect the external plate pack, connections and supports for leakage, corrosion, vibration damage and excessive piping loads. Maintain upstream strainers and system cleanliness, and use only cleaning-in-place procedures compatible with the installed materials. Any indication of cross-contamination requires prompt investigation because the bonded plate pack is not normally opened for onboard repair; refer to the manufacturer documentation for test limits and cleaning criteria.

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Replacement Parts

Because the bonded plate pack is a sealed assembly, the principal strategic spare is a correctly specified replacement heat exchanger where redundancy and trading pattern justify carrying one. Also consider connection seals, strainer elements, isolation-valve service kits and approved cleaning consumables. A replacement unit must match the original materials, connections, duty and approval requirements.
Equipment Model #153941 · ✓ still in production